Am I pregnant or not ?

Hi I am not sure and figured to ask so that I can start taking precautions. Ok the
Husband and I have been TTC our 3rd baby. I was on birth control for 3 1/2 years (right after our 2nd was born). We started trying in September and nothing has happened yet, but I was told it will take a little since I was regular with the birth control for my baby to get back to normal. Ok so my first day of my last period was Dec 26th and my ovulation calendar said the 5th thru 8th were good days to have intercourse to get pregnant since I ovulated on the 9th. Well the husband and I had intercouse 6th-8th and now I am experiencing lower abdominal pains especially when I bend over or when I sit down. Its nothing too unbearing just there kindof feels like cramping but I usually don't have cramping before periods. and my period isn't due till the 22nd of January. Also my breast aren't really sore sore just that after I touch them or like my oldest daughter put elbow in them they still felt like it was there after her elbow moved and slightly hurt. I also have had to pee a little more then usual and seem tired a little more then usual (not sure if thats because of the weather since its Snowy outside). I'm just confused because I didn't think you could experience any of this so soon and with both my other pregnancies I had morning sickness like right away. What is the chance that my symptoms are due to me being pregnant or is it nothing to get my hopes up about?

Thanks